[Campbell Biology P.228] In the context of anaerobic respiration described, which substance ... | Practice Question

In the context of anaerobic respiration described, which substance is given as an example of a final electron acceptor, instead of oxygen, for building a proton-motive force?

  • A: Pyruvate
  • B: Glucose
  • C: Sulfate ion (SO4^2-)
  • D: Water

Explanation

The text explicitly states: 'Some 'sulfate-reducing' marine bacteria, for instance, use the sulfate ion SO4^2- at the end of their respiratory chain.'